Difference between surge and lightning

一、Different nature

1. Surge: it refers to the peak value exceeding the stable value in an instant, including surge voltage and surge current.

2. Lightning strike: it refers to the killing or damage caused by the current passing through people, livestock, trees, buildings, etc.

二、Different causes

1. Surge: a violent pulse that occurs in only a few millionths of a second. Possible causes of surge include heavy equipment, short circuit, power switching or large engine.

2. Lightning strike: the rapid discharge between one part of the charged cloud and another part of the differently charged cloud, or the charged cloud to the earth.

三、 Different characteristics

1. Surge: products with surge blocking devices can effectively absorb sudden huge energy to protect connected equipment from damage.

2. Lightning strike: the rapid discharge process produces strong lightning and accompanied by huge sound; When lightning occurs, it usually generates charges. The bottom layer is negative and the top layer is positive. In addition, it also generates positive charges on the ground and moves with the cloud. Positive and negative charges attract each other, but air is not a good conductor.